Machine for removing surplus material



B. n.. BUIIANAIII.

MACHINE FOR REMOVINGSURPLUS MATERIAL.

APPLICATION FILED IuLY 24, Isls.

1 35 l 1 5 3 Patented Aug. 31, 1920.

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mg. 4. f5 @ff/9%@ CII BUDD BOHANAN, OF BSTGN, liISSAGHUSETTS, ASSEGNGR,BY MESNE 'ASS'VIGN- MENTS, TO UNITED SHOE IVJCHINERY CORPORATIGN, FTERSON, NEW JER- SEY; A CORPDRATION OF NEW JERSEY.

MACHINE FOR REMUVING SURPLUS MATERIAL.

To all 'iu/1.0m t may concern:

Be it known that l, BUDD D. BOHANAN, a citizen of the United` States7residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain lmprovements in Machines for Removing Sur plusMaterial, of which the following description, in connection with theaccompanying; drawings, is a specification, like reference characters onthe drawings indicating like parts in the several figures.

rlhis invention relates to cutting machines for use in the manufactureof boots and shoes and is herein illustra-ted in connection with amachine for removing surplus materialprojectingbeyond the seam 4whichjoins the quarters to the vamp of a shoe.

ln the manufacture of shoes, there are several thicknesses of materialatgthe point where the lower forward portions of the quarters areattached to the throatof the vamp. For example in a lace balmoral boot,there may be in addition to the quarters and the va1np the linings ofthe quarters, the lacing); strips. the lacing strip stays and certainother pieces of reinforcing` material. The stitches which. attach thequarters to the vamp pass tl'iroug'h all of these articles so that aconsiderable amount of surplus material projects beyond the seam. Thismaterial. if allowed to remain., forms an objectionable bunch whichmakes the shoe more oi' less unsightly and uncomfortable. p

llithcrto this operation has been carried out by hanrh and the generalobject of the present Vinvention is to provide a. machine forperforming; the operation.

@ne feature of the present invention comprises a machine for removingsuch surplus material having a knife, a support for the surplusmaterial, and means for operating the knife and for causing; relativemovement between the knife and support to sever said material.

It is desirable to cut ofi the surplus material as close as practicableto the scam but to avoid-cutting; the stitches. lTo this end anotherfeature of the invention comprises in a machine of the class described asupport havinga narrow end adapted to extend close Specification ofLetters Patent.

Application filed .Tilly 24, 1916.

Patented Aug. 3f, 1520.

Serial No. 110,942.

to the seam and a supporting face inclined to the direction of cut ofthe knife, and means for presenting the work to the knife whilemaintaining' the seam out of the path of the cut of the knife. Byproperly locatingthe support and the knife, it is thus possible to cutclose to the seam without in any case cutting into it.

These and other features of the invention, including;` certain detailsof construction and combinations of parts will be described inconnection with an illustrative machine and pointed out in the appendedclaims. preferring. now to the accompanying draw ings. y

AFigure l is a perspective of a portion of a machine, in which thepresent invention is embodied Y 2 is a detail in perspective showing thesurplus material placed upon the sup; port in position to he presentedto the knife;

, Figli. 3 is a detail in section on the line 3 3 l showing` .themechanism for moving the support.y the support being in position toreceive the work;

Fig. 4s is a similar section showing the work support in position tocause the knife to operate upon the work. ln all the figures a guardwhich covers all of the knife except that portion opposite the worksupport has been omitted to promote clearness.

i The illustrative machine comprises a band knife 5 running); over drumsof usual form, two of which are shown at 7, said drums heing; rotated byany suitable mechanism7 not shown. Fastened to the Vframe 9 of themachine is a bracket 1L through which as well as through bars 13 andknife guides l5 pass screw bolts 17 by which these parts are fa. tenedto the frame of the machine. Between the knife guides l5 the worksupportis located? said support having; an inclined operative face with whichthe knife cooperates and narrow forward end adapted to eX- tend close tothe seam as best shown in Fig'. 4. This worksupport is herein shown ascomposed of a hardened block 19 mounted on carrier 2l1 said parts beine'fastened together by a screw 23. The carrier has a fiat under facehaving an inclined forward end y 25, the flat face normally resting uponthe bottom of a guideway formed by the flat upper face of the bracket11, and the inclined end being adapted to engage and ride up an upwardlyinlined face 27, formed on the bracket 11. The carrier 21 is held fromsidewise movement by guides, one of which is shown at 29, said guidesbeing fastened to the bracket l1 by screws 3l. A leaf spring 33 bearsupon the upper side of the work support, tending at all times to hold itdown but permitting it to rise into the position shown in Fig. 4L whenmoved toward the knife.

The carrier 2l and work support 19 are normally held in the retractedposition shown in Figj by a coiled spring 35 fastened at its upper endto the bracket 1l and at its lower end to the end of the horizontal armof a bell crank lever 37, said lever being pivoted -at 39 to astationary lug 41 and having in its vertical arm a slot 43. Through thisslot passes a pin i5 carried by ayoke 47 the stem of which passesthrough a slot in the bracket l1, through a bore in the carrier 2l andreceives a nut 51 on its upper end. A treadle rod 53 pivoted to the bellcrank lever at 55 is connected to a treadle, not shown. From theforegoing it will be evident that the work support isl normally held inthe position shown in Fig. 3 and that depression of the t'readle willmove it forwardly and upwardly into the position shown in. Fig. l so asto present the work to the knife.

As has been explained above, therpurpose of the present machine is toremove surplus material .which projects beyond a seam, and this surplusmaterial. may consist of the ends or margins of various. articles suchas linings, stays, reinforcements, etc. In order to simplify thedrawings and the eXplana tion of the operation of the machine there hasbeen shown an unlined. upper comprising two quarters l0() attached. to avamp 200, a single reinforcing piece 300 having been. interposedVbetween them and.. the three stitched together, the reinforcing piece inthe present case being a small piece of leather of Icircular outlinelocated at ,the throat of the vamp at the. point of junction of thelower forward ends of the quarters. It is at this point that anobjectionable,bunch' of surplus material accumulates in the, manufactureof the upper of a shoe, and ordinarily this material consists of theends or margins-of several pieces of leatheror cloth.

In the operation of the machine the upper is turned` wrong side out andpresented to the support 19 while said. support is in the positionshown. in Fig. Y3 with the nairow forward` end of saidI support`extending close to the seam 50 and between the surplus material andy thevamp, said surplus material resting upon the inclined upper face of thesupport. The treadle is then depressed, whereupon the support is movedtoward the knife and upwardly into the position shown in Fig. 4, and theprojecting ends of the quarters 100 and the projecting end of thereinforcing piece 300 are severed by a draw cut on a bevel. Upon releaseof the trea'dle the support is returned to the position shown in Fig.

Although the invention has been set forth iii connection with aparticular machine, it should be understood that the invention is notlimited in the scope of its application to the particular machine shownand described. l

Having thus described my invention, I claim as new and `desire to secureby Letters Patent of the United States:

l. A machine for removing surplus mate'- i-ial projecting beyond a seamwhich joins4 two or more flexible articles, having in` combination,- aknife, Ymeans for operating the knife, a combined support for thesurplus material and cutting. bed for the knife, and

combination, a knife, means for operating theY knife, a combined supportfor the surplus material and cutting bed for the knife,

and means for moving the support; into contact with the edge ofthe knifeto cause the surplus material t0 be severed.

3', ifi machine for removing surplus material projecting VbeyondY a`seamf which joins two or more. flexiblearticles, having in combination,a knife, means-` for moving the knife in a manner to .producey a drawcut, a support forthe surplus material, and means for producing relativemovement of approach between the knife and the support to cause the edgeof the Vknife to pass through the surplus material into contact with thesupport. j 1

4. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having. in combination, aknife, means for operating the knife to produce a draw-cut, a supportforA the surplus material normallyspaced from the knife, said supporthaving. a narrow end adapted to be placed close to theseam,

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two or more flexible articles, having in combination, a band knife,means for operating the knife, a support for the surplus material, saidsupport being normally spaced from the knife, treadle controlled meansfor moving the support into contact with the knife to sever the surplusmaterial, and means responsive to release of the treadle for returning`the support to and holding it in its normal position.

6. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having, in combination, aknife, means for moving said knife in a manner to produce a draw cut, asupport for the surplus material, said support being normally stationaryand out of operative relation to the knife having a narrow end adaptedto be placed close to the seam and a supporting face inclined to thedirection of the cut to be made, and means for causing relative movementbetween said knife and support to cause the surplus material to besevered on a bevel.

7. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having, in combination, aknife, means for operating said knife, a support located in front ofsaid knife in position to support the work with the locality to be cutbelow that portion of the edge of the knife to which it is to bepresented, and means for raising said support and moving it intooperative relation to said knife.

8. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having, in combination, aknife, means for moving said knife in a manner to produce a draw cut, asupport located in front of said knife in position to support the workwith the locality to be cut below that portion of the edge of the knifeto which it is to` be presented, and means for raising said support andmoving it into operative relation to said knife.

9. A machine for removing surplus material projecting beyond the seamwhich joins the top of the upper of a shoe to the vamp, having, incombination, a support normally stationary and out of operative relationto the knife having a tapered end adapted to be inserted between thesurplus material and the vamp and a face which serves as a support forsaid surplus ma` terial, a knife, means for moving said knife in amanner to produce a draw cut, and means for producing relative movementbetween saidL knife and support to cause the knife to sever saidmaterial.

10. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having, in combination, anendless knife, means for op- @rating said knife, a support for thesurplus material, said support being normally stationary and out ofoperative relation to the knife, and'means for moving the support intooperative relation to the knife to cause the knife to sever saidmaterial and for returningthe support to normal position. v

ll. A machine for removing surplus mate ial projecting beyond a seamwhich joins two or more flexible articles, having, in combination, aknife, means for operating said knife continuously, a support for thesurplus material, and treadle operated means for causing relativemovement between said support and knife to cause the knife to sever saidmaterial.

l2. A machine for removing surplus material projecting beyond a seamwhich joins two ormore flexible articles, having, in combination, aknife, means for operating said knife, a support for the surplusmaterial, said support being normally stationary and out of operativerelation to the knife, and treadle operated means for moving the supportinto operative relation to the knife to cause the knife to sever saidmaterial.

i3. A machine for removing surplus material projecting beyond a seamwhich joins two or more flexible articles, having, in combination, aknife, means for moving said knife in a manner to produce a draw cut, asupport for the surplus material, said support being normally stationaryand out of operative relation to the knife, and treadle operated meansfor causing relative movement between said support and knife to causethe knife to sever said material.

lll. A machine for removing surplus material j irojecting beyond theseam which joins the top of the upper of a shoe to the vamp having, incombination, a knife, means for operating said knife, a support for saidsurplus material, said support being normally stationary and out ofoperative relation to the knife, a guideway in which said support isslidable, and treadle controlled means for sliding said support towardsaid knife.

l5. il machine for removing surplus material projecting beyond the seamwhich joins the top of the upper of a shoe to the vamp having, incombination, a knife, means for operating said knife, a support having anarrow end adapted to be inserted between said surplus material and saidvamp, said support being normally stationary and out of operativerelation to the knife, and means for presenting the material thussupported to the knife while maintaining said seam out of the path ofthe cut of the knife.

16. A machine for removing surplus material. projecting beyond the seamwhich joins the top of the upper of a shoe t0 the movement Ah'c-tvveenthe cutter vand the supvmp having, in' combination, a support port t0cause th'e edge of the Cutter t0` pass having a tapered end adaptedto'he inserted through the surplus material into Contact 10 y betweenthe surplus material and the vamp With the support.

` and a face which serves as va support for In testimony whereof I hervesigned my said surplus material Vand as a cutting bed,4 name to thisspeccation'. e cutter, and means for producing relative `BUDD D.BQHANAN.

